Gun recoil mechanism.



1. D. s. HASLETT. GUN RECOIL MECHANISM.

APPLICATION -FILED APR. 9. 1915.

Patented July 27, 1915.

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E@ E 4 Jm @we 'I as? C 'ZM -v flumm JOHN D. S. IEASLETT, OF PHILADELPHIA, PENNSYLVANIA.

GUN RECOIL MECHANISM.

Specification of Letters Patent.

Patented July 27, 1915.

Application filed April 9, 1915. Serial No. 20,147.

T all fwhom 2-may concern Be 1t known that I, JOHN D. S. HASLETT,

` a citizen ofthe United States, residing in the city of Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented Improved Gun Recoil Mechanism, of which the following is a specification.

My invention relates to recoil mechanism for rifles, shot guns and-fire arms of ana-logous character, and my leading object is to *provide an improved shock absorbing mechanism of simple and eliicient character that can be applied readily to. the butt of a gun stock, that can be adjusted readily to take up the force of the recoil without shock, that will lresist rough usage without disturbance of the correct relation of the parts or the inherent true action of the mechanism, andthat can be applied and detached readily.

. The 'characteristic features of my improvements are fully disclosed in the following description and the accompanying ydrawin s in illustration thereof.

the drawings, Figure 1 is a broken part sectional elevation of a gun stock having my improvements applied thereto; Fig. 2 1sV a plan view of a detached recoil mechanism analogous to that shown in Fig. 1, and Fig. 3 is a part sectional side elevation of the same.

As shown in the drawings, the gun stock 1 has the parallel cylindrical recesses 2 formed in the butt thereof. A shoulder plate or cap 3 is provided with the flange Il, which is telescoped on the butt of the stock and is adapted to reciprocate thereon. The plate 3 is provided with the parallel cylindrical bosses and plungers 5, on which are telescoped the cylinders or casings 6, which lit in therecesses or sockets 2, the casings being provided withlthe interior flanges or bearings 7 adjacent to their ends beyond the plnngers 5. Coiled springs 8 are disposed in the casings between the plungers 5 and the bearings 7, and the screws or bolts 9 pass through the bearings 7 -and the coils of the springs 8 into the threaded sockets 10 of the plungers 5, the screws having heads engaging the flanges and being adjustable by turning them to vary the tension of the springs 8 and the consequent degree of resiliency of the recoil mechanism. A. plate 11 is provided with the apertures 12 through which the plungers 5 passfreely and with the aperture 13 for-a screw 14: by which the plate isiXed to the butt of the stock, which it ts. The plate 3 1s provided with an aperture 15 in linewith the aperture 13, for the passage of the screw 14, the aperture 15 being normally closed by a stub screw 16. l

It will be understood that this mechanism is readily applied to the butt of a gun stock, provided with the sockets 2, by slipping the casings 6 intothe sockets and fixing the plate 1l to the butt. The mechanism will be held with the parts in their true relation and will act correctly because the well supported casings 6, the bearings 7, the screws 9 and the plate 11 keep the plungers 5 in correct alinement. The simplicity of the construction and the readiness with which it can De attached anddetached providefor ready access to the screws 9 and the ready adjustment of the mechanism to the force of the recoil.

Having described my invention, I claim: 1. The combination with a gun stock having substantially parallel tubular casings set in the butt thereof, saidl casings having bearings therein, of a plate having pistons thereon adapted to reciprocate in said casings,

coiled springs in` said casings between saidV bearings and plungers, screws extending through said bearings and the coils of said springs into said plungers, and a plate yoked on said plungers and fixed to the butt of said stock.

2. The combination with a gun stock, of parallel cylinders set in the butt thereof, said cylinders having internal bearing flanges, a shoulder plate having a flange thereon conforming to and adapted to reciprocate on 4said stock, plungers fixed to said plate and adapted to reciprocate in said cylinders, coiled springs in said cylinders adapted to bear against'said flanges and pistons, bolts extending throughsaid flanges and the coils of said springs to connections with said pistons, said bolts having parts thereon adapted to engage said flanges and to be adjustable relatively to saidpistons, and a plate yoked on said plungers and fixed to the butt of said stock.

In testimony whereof I have hereunto set my name this 6th day of April, 1915. j

JOI-IN D. S. HASLETT. 

